title: Modular taper junction corrosion and failure: how to approach a recalled total hip arthroplasty implant.
abstract: Corrosion at the modular neck-stem taper junction has become an increasingly important topic as several reports have identified this couple as a possible source for early failure with findings similar to failed metal-on-metal hip arthroplasties. Recently, two different modular stem systems from a single manufacturer were voluntarily recalled due to concerns of failure of the modular taper junction. We discuss how to approach the diagnosis and management of patients with these particular stem systems. We further reviewed the literature to evaluate whether this is a manufacturer-specific defect or indicative of a broader trend. Recent studies appear to implicate the basic design of the neck-stem taper junction, rather than a single manufacturer, which is at high risk for fretting and corrosion.
authors.affiliation: Center for Joint Preservation and Replacement, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland.
authors.forename: Robert
authors.initials: R
authors.lastname: Pivec
authors.forename: R Michael
authors.initials: RM
authors.lastname: Meneghini
authors.forename: William J
authors.initials: WJ
authors.lastname: Hozack
authors.forename: Geoffrey H
authors.initials: GH
authors.lastname: Westrich
authors.forename: Michael A
authors.initials: MA
authors.lastname: Mont
mesh_terms: D018771:Arthralgia / Q000209:etiology; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000295:instrumentation*; D003343:Corrosion; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D057052:Medical Device Recalls; D011475:Prosthesis Failure; D012086:Reoperation
keywords: THA; corrosion; modular junction corrosion; modular stem